He aha te uara-R o te whakamarumaru?

Mena kei te hoko koe i te whakamahana hau, kua rongo pea koe i te kupu "R-value". Engari he aha rawa te mea nei? He aha te hiranga o te whiriwhiri i te whakamahana hau tika mō tō whare?

Ko te uara-R o te ārai wera he ine i tōna ātete wera. He māmā noa iho, e tohu ana i te pai o te ātete o te ārai wera ki te rere o te wera. Ko te teitei ake o te uara-R, ko te pai ake o te ārai wera ki te pupuri i a koe kia mahana i te takurua, kia mātao hoki i te raumati.

He mea nui te uara-R hei whakaaroaro māu i te wā e whiriwhiri ana i te whakamarumaru mō tō whare. Ka taea e ia te āwhina i a koe ki te whakatau i te momo me te nui o te whakamarumaru e tika ana hei whakahaere i te pāmahana o tō whare, hei whakaiti hoki i ngā utu pūngao.

Tērā pea he rerekē ngā uara-R e hiahiatia ana mō ngā wāhi rerekē o tō whare, i runga i te āhuarangi me te nui o te whakamarumaru e wātea ana. Hei tauira, ko te whakamarumaru o te tuanui he nui ake te uara-R e hiahiatia ana i te whakamarumaru o te pakitara nā te mea ka piki ake te wera ka puta atu i te tuanui.

E whakarato ana te Tari Pūngao o Amerika i ngā aratohu uara-R e taunakitia ana i runga i te rohe āhuarangi. Ka taea e ēnei aratohu te āwhina i ngā kaipupuri whare me ngā kaihanga whare ki te whakatau i te uara-R e tika ana mō tō rātou wāhi.

I ngā āhuarangi makariri, e taunakihia ana kia teitei ake ngā uara-R hei whakaiti i te ngaronga wera me te whakapaunga pūngao. I ngā āhuarangi mahana, he nui pea te uara-R iti hei ārai i te pikinga o te wera me te pupuri i te pāmahana o roto kia pai.

He mea nui kia mōhio ko te uara-R tētahi o ngā mea hei whakaaroaro māu i te wā e whiriwhiri ana i ngā rauemi whakamahana. Me whai whakaaro anō hoki ki ētahi atu mea pēnei i te ātete ki te makuku, te haumaru ahi me ngā utu tāutanga.

He maha ngā momo rauemi whakamahana e wātea ana, he rerekē te uara-R o ia momo rauemi. Ko te muka karāhe, te cellulose, te papa pahuka, me te pahuka rehu ētahi o ngā kōwhiringa noa, he rerekē ngā uara-R me ngā tikanga tāutanga o ia momo rauemi.

Ina whakatauritehia ngā rauemi whakamahana, kaua e whakaarohia te uara-R anake, engari me te mahi whānui me te roa o te ora o te rauemi whakamahana. Tērā pea he nui ake te uara-R o ētahi rauemi engari kāore pea i te tino whai hua i raro i ētahi āhuatanga, me nui ake rānei te tiaki i roto i te wā.

Haunga te whiriwhiri i te rauemi whakamarumaru tika, he mea nui te tāutanga tika hei whakanui ake i te whai huatanga o tō uara-R. Ka taea e ngā āputa, te kōpeketanga, me ngā turuturu hau te whakararu i te mahi o te whakamarumaru, ka hua ake te hekenga o te ātete wera me te whai huatanga o te pūngao.

Hei whakarite i ngā hua pai rawa atu, he mea pai kia kōrero koe ki tētahi kaimahi whakamātao ngaio ka taea te aromatawai i ngā hiahia motuhake o tō whare, me te taunaki i te momo whakamātao me te uara-R e tika ana.

Hei whakarāpopototanga, he mea nui te uara-R o tētahi rauemi whakamarumaru ki te whakatau i tōna ātete wera me te whai huatanga whānui ki te whakahaere i te pāmahana o tō whare. Mā te mōhio ki te uara-R e taunakitia ana mō tō wāhi me te whiriwhiri i te whakamarumaru tika, ka taea e koe te whakapai ake i te whai huatanga o te pūngao, te whakaiti i ngā utu whakamahana me te whakamatao, me te waihanga i tētahi taiao o roto e pai ake ana.